The flywheel should turn freely through about 40 degrees around bottom dead center. If you flip it and it bounces back, you are OK. The Atwater Kent ignition system used is the most efficient system ever devised. There its no current draw unless the engine its running. The breaker points remain open at 0.009" until the flywheel is turned. The "dog bone" connecting rod rides on a crankshaft eccentric that rocks the notched shaft back and forth. These special breaker points latch on to the notch in the shaft and are pulled out increasing the point gap. When released the weight causes them the snap shut giving a millisecond pulse of electricity firing the spark plug. Lightfour and Zephyr coils may also be used. . . 😉
